Dispersing method and apparatus



Feb. 1, 1966 E J. EDSON 3,232,487

DISPERSING METHOD AND APPARATUS Filed Feb. 17. 1964 4 Sheets-Sheet 1 o t N F Q- l N i N 1 (\J 1 I 01 m w L0 IO 00 O N (D m v N N N (O N o E 5 LL INVENTOR. tni EDWARD J.EDSON ATTORNEYS Feb. 1, 1966 E. J. EDSON DISPERSING METHOD AND APPARATUS 4 Sheets-Sheet 2 Filed Feb. 1'7, 1964 S Y a M O R MN 0 W S A 1m 1? u D R A w m Feb. 1, 1966 E. J. EDSON DISPERSING METHOD AND APPARATUS 4 Sheets-Sheet 3 Filed Feb. 17. 1964 FIG. l3.

I24 0 -126 no INVENTOR.

EDWARD J cosou BY 2 7d 2 ATTORNEYS Feb. 1, 1966 E. J. EDSON DISPERSING METHOD AND APPARATUS 4 Sheets-Sheet 4 Filed Feb. 17, 1964 IIIIII 1min IIIIIIIII'. lllllllllll FIG. 9.

INVENTOR. E DWA R D J E D SON BY 2 2 FIG. ll.

ATTORNEYS United States Patent 3,232,487 DESPERSING METHOD AND APPARATUS Edward J Edson, Muskegon, Mich, assignor to Continental Motors Corporation, Muskegon, Micln, a corporation of Michigan Filed Feb. 17, 1964, Ser. No. 346,376 24 Claims. (Cl. 222-70) This application is a continuation-in-part of application Serial No. 216,668, filed August 13, 1962, now abandoned.

This invention relates to a method and apparatus for dispersing particles, liquid or the like, and more particularly has reference to a method and device for uniformly dispersing a treating compound such as a rust inhibitor into the combustion chambers of an internal combustion engine, or into a container or other structure prone to corrosion.

It is common practice of engine manufacturers, and is required by government specifications, to coat the walls of the combustion chambers of the engines they produce with a rust inhibiting compound to prevent damage due to corrosion while the engine is in transit and before it is put into operation. Until recently, the rust inhibiting compounds used were of a semi-solid form such as grease and it was necessary to remove the substance from the engine before operating. Recent developments have produced a number of powdered and liquid rust inhibitors which require no depreservation. The present invention provides a means and a method of dispersing such rust inhibitors in the combustion chambers of an internal combustion engine, although it will be noted that I do not restrict the invention to such uses.

It is an object of the present invention therefore to reduce the damage to internal combustion engines caused by corrosion during transit and before the engine is put into operation by providing a method and means of uniformly dispersing a rust inhibiting compound within the combustion chambers of such engines.

it is still another object of the present invention to reduce the costs of roviding rust protection for the combustion chambers of internal combustion engines by providin a rust inhibitor compound dispersing device having means metering the correct amount of compound to be dispersed into each combustion chamber.

It is yet another object of the present invention to facilitate the application of powders or liquids in confined spaces by providing a pneumatic device adapted to be inserted into a confined space and operable to disperse a predetermined amount of powder or liquid into such a space.

It is yet a further object of the present invention to facilitate the dispersement of a rust inhibiting power or liquid in the combustion chambers of an internal combustion engine by providing a nozzle means adapted for insertion into the manifold of such an engine and means indicating the position of the nozzle with respect to the port of each cylinder of such an engine.

Still further objects and advantages will readily occur to one skilled in the art to which the invention pertains upon reference to the following drawings in which like characters refer to like parts throughout the several views and in which FIG. 1 is a fragmentary diagrammatic view of a first preferred embodiment of the present invention,

FIG. 2 is a schematic illustrating the circuitry of the preferred embodiment of the present invention shown in FIG. 1.

FIG. 3 is an elevational top view of a first preferred dispersing device with portions in section and other portions removed for purposes of clarity.

FIG. 4 is an elevational fragmentary side view of the device shown in FIG. 3.

FIG. 5 is an elevational view of the metering means in the first preferred embodiment of the present invention.

FIG. 6 is an elevational view of the valve means in the first preferred embodiment of the present invention.

FIG. 7 is an elevational view illustrating the use of the dispersing device of the present invention.

FIG. 8 is an elevational side view of a second preferred embodiment of the present invention.

FIG, 9 is an elevational view of the device of FIG. 8.

FIG. 10 is a cross-sectional view taken along the lines Iii-10 in FIG. 9.

FIG. 11 is an elevational view of the device of FIG. 8.

FIG. 12 is a detail view of the actuating mechanism with the stop in contact with the end of the rod, and

FIG. 13 is a cross-sectional view taken along the lines 1313 of FIG. 8.

Description Referring now to the drawings for a more detailed description of the present invention, FIG. 1 illustrates a preferred device as comprising a control box 10 and a dispersing device 11.

The dispersing device 11 as can best be seen in FIGS. 1, 3 and 4, preferably comprises a hopper 12 having a bottom 13, and walls 14, and side walls 15. The side walls 15 as can best be seen in FIG. 1 preferably comprise a medial outwardly sloped portion 16 and a top portion 17 substantially normal to the plane of the bottom 13. The end walls 14 as can best be seen in FIG, 4 preferably comprise a sloped portion 18 and a top portion 19. A cover 20 closes the top of the hopper 10 and is removably secured to the top portions 19 of the end walls 14 by spaced pins 21 and a screw 22. The cover 20 is provided with a slot 23 which receives the shank of the screw 22 and a wing nut 24 is provided to retain the cover 2% in position.

One of the side walls 15 preferably carries a valve member 25. The valve member 25 as can best be seen in FIG. 6 preferably comprises a cylindrical body portion 26 having end flanges 27-28. The end flanges 27-28 each are provided with a plurality of annularly spaced threaded perforations 31 and the end flange 28 is preferably spaced from the body portion 26 to form an annular recess 29. A radially extending inlet port 32 and a radial ly extending outlet port 33 are provided in the body portion 26 in communication with the recess 30. The end flange 27 is secured to the side wall 15 by screws 34 extending into the threaded perforations 31. An opening 35 is provided in the side wall 15 in communication with the recess 30. The end flange 28 carries a bracket 36 by means of the perforations 31 and screws 37.

A metering member 38 is axially slidably carried in the opening 35 and the recess 30. The metering member 38 as can best be seen in FIG. 5 preferably comprises a cylindrical body portion 39 having at one end an axially extending threaded recess 40. A radially ex tending threaded recess 41 registers with the recess 40. A conical head portion 42 is provided with an axially extending threaded shank 43 which is received by the recess 40. The end of the body portion 39 opposite the recess is provided with a bracket 44. A set screw 45 is provided for the recess 41. It is apparent that the conical head portion 42 and the body portion 39 are adjustably spaced by the shank 43 and set screw 45 to form an annular metering space 46.

The medial portion 16 of the side wall 15 is provided with a sight tube 47. One of the end walls 14 carries an angle bracket 48 and a vibrating motor 49 is carried on the angle bracket 48 by bolts 50.

The bracket 36 carries a tubular handle member 51 having an axis substantially parallel to the axis of the valve member and a tubular handle member 52 substantially normal to the axes of. the handle member 51 and valve member 25. A bracket 53 is secured to the handle member 52 at a point intermediate the ends thereof and the bracket 53 pivotally carries a handle member 54 by a pivot pin 54a. The handle member 54 preferably is provided with a flattened end portion 55 as can be seen in FIG. 4. Links 56 are pivotally carried by the end portion 55 and these are in turn pivotally connected to the bracket 44 of the metering member 38 so that pivoting of the handle member 54 on the bracket 53 produces axial movement of the metering member 38.

A screw 57 passes through the handle members 52-54 and carries spring seats 58-59. A spring 60 is biased between the spring seats 58-58 and urges the end portion 55 to pivot toward the hopper 10. A stop member 61 is provided on the bracket 36 to limit the pivotal movement produced by the spring 60. The handle members 52-54 are provided with aligned electrical contacts 62-63 respectively. The outlet port 33 of the valve member 25 carries a tubular nozzle member 64 as can best be seen in FIG. 4 having a closed end 65. The end 65 is. provided with a perforation 66. A plurality of spaced annular locating flanges 67 are provided on the nozzle member 64 for usage in treating internal combustion engines.

The control box 10 as shown in FIG. 1 preferably comprises a housing structure 68 having an exterior handle 69. The housing structure 68 carries an inlet fitting 70 and an outlet fitting 71. The inlet fitting 70 is connected to conduit 72 which is adapted to be connected to a source of air pressure (not shown) and the outlet fitting 71 is connected to a conduit 73 which is connected to the inlet port 32 of the valve member 25. A conduit 74 is carried in the housing structure 68 intermediate the inlet fitting 70 and the outlet fitting 71. A pressure regulator 75, a solenoid actuated valve 76, and an air flow regulator valve 77 are carried in the conduit 74. A timer 78 is carried in the housing structure 68 and a switch 79 is provided.

As can best be seen in FIG. 2 the switch 79 is adapted for connection to a source of electrical power 80. When the switch 79 is closed, electrical current passes through the vibrator 49 to vibrate the hopper 10. Closing the contacts 62-63 by pivoting the handle 54 against the force of the spring 60 energizes the two way valve 76 through the normally closed timer 78. The valve 76 opens air flow through the conduit 73 to the valve member 25. As a coil 81 in the timer 78 heats up contacts 82 in the timer 78 open breaking the circuit after a predeter-mined time interval and closing the valve 76.

Inoperation, as can be seen in FIG. 7, the nozzle 64 is inserted into a hole drilled into the exhaust manifold 83 of an engine 84 to be treated. The marking flanges 67 are positioned on the nozzle 64 to indicate when the perforation 66 is adjacent an exhaust port 85. When the first marking flange 67 is adjacent the exhaust manifold 83, the handle 54 is pivoted against the force of the spring 60 moving the metering means 38 axially from the hopper 10 into the valve member 25. The contacts 62-63 are closed by the movement of the handle 54, the valve 76 opens for a predetermined interval directing air under pressure through the valve member 25 and the metering means 38-to disperse rust inhibiting compound through the nozzle 64 and into the combustion chamber being treated.

A rust inhibitor compound which has been found to be particularly suitable for use with the device of the present invention is a powdered substance produced by Shell Oil Company and sold by that company under the name VPI 270. This substance produces vapors which act in the presence of moisture and oxygen to prevent corrosion. It is apparent that the device of the present invention could be used to disperse liquids if appropriate seals were provided.

The amount of powder or liquid conducted to the valve member 25 may be varied by adjusting the metering space 46. The vibrator 49 insures that the metering space 46 will be filled each time the metering means 38 is thrust into the hopper.

The flow control valve 77 and pressure regulator have been provided because it has been found that if the air is permitted to flow with too great a velocity or pressure, the desired pattern of atomization is destroyed and if the velocity or pressure is not great enough, insufficient coverage is produced.

In. this regard, it has been found that the most uniform pattern of atomization is obtained by a gradual retardation of the air flow after the initial high pressure blast of air. A continuation of the high pressure flow after the initial dispersion of the powder or liquid has the effect of disturbing the dispersion pattern. On the other hand, an immediate cessation of the air flow after the initial blast will produce a non-uniform dispersion along the length of the enclosed space. The most uniform and efficient pattern of atomization is obtained by gradually reducing the air flow after the initial dispersion has taken place.

A preferred embodiment of the invention incorporating this gradual air retardation feature is shown in FIGS. 8-12. This embodirnent has the particle or liquid metering unit, air conducting unit, and air retarding unit all incorporated in a single portable structure which requires only a single connection to a suitable high pressure air source.

As can best be seen in FIG. 8, the device includes a central cylindrical body having a central bore 102 extending parallel to and slightly offset from the axis of the body 100 A handle 104 extends downwardly from the lower portion of the body 100.

A valve body having an annular flanged section 112 is disposed adjacent to the valve structure 106. The flanged section 112 includes a cylindrical chamber 114 which matches a chamber 108 also provided in the valve body 110, and is situated directly opposite the chamber 108. The valve body 110 includes a cylindrical stem 116 which extends away from the flanged section 112. A cylindrical filling chamber 118 extends axially from the outer end of the stem 116 towards the flanged section 112. A plug 119 seals the open end of the chamber 118 in air-tight fashion. A bore 120 extends axially through the stem 116 between the filling chamber 118 and the chamber 114. A series of parallel holes 122 extend at spaced points through the stern 116 about the periphery of the bore 120. An inlet passage 123 extends transversely through the stern 1'16 and through a projecting flange 124 below the stem. A passage entrance 126 is provided at the lower face of the flange 124.

The valve body 110, valve structure 106, and central body 100 are fastened rigidly together by a series of socket head screws 128 which extend through matching aligned holes provided in the flange 112, and the members 106 and 100. A rubber diaphragm 130 is fixed in place between the valve structure 106 and flange 112 so as to separate the chambers 108 and 114 in fluid-tight manner. A piston 132 slidably disposed in the bore 120 is threaded at one end and fixed by means of a nut 134 to the center of the diaphragm 130. A small spring 136 extending spirally along the outside of the piston is normally compressed between the diaphragm and the interior face of the chamber 114 of the valve body 110. The opposite end of the piston 132 has a valve seat 138 which normally seats against the interior face of the filling chamber 118 in air-tight fashion so as to seal the holes 122 against passage of air therethrough.

An air passage 140 extends along the valve body 110 between the chamber 114 and an opening 142 in the valve structure 106. The opening 142 extends through the valve structure 106 and is enlarged adjacent to the central body 100. A hole is provided in the diaphragm 130 between the passage 140 and the opening 142 so as to permit the passage of air between them. Another air passage 144 extends linearly between the filling chamber 118 and a small cavity 146 on the face of the valve body 110 adjacent the valve structure 106. This can best be seen in FIG. 10. A plunger 148 is slidably disposed in an opening 150 extending through the body 110 opposite the cavity 146. The rearward end of the plunger 148 includes a seat 152. A hole is provided in the diaphragm to accommodate the plunger and seat. A small spring 154 extends about the forward end of the plunger 148 and bears against the enlarged head 156 of the plunger so as to bias the plunger towards its forward position. In this forward position, the seat 152 seals the rearward end of an air passage 158 which extends into the chamber 108. -A rod 160 which extends slidingly through a bore in the central body 101), is in alignment with the plunger 148 and abuts the head 156 of the plunger.

A metering device 162 is rotatably disposed in the central bore 102 in the central body. This device takes the shape of a rotor, having a plurality of spaced apart radially extending arms 164 projecting from a central body 166. A passage 167 extends axially from the forward face of the body 166 partially through the device. Each arm 164 terminates in an enlarged portion 168. The metering device 162 is preferably constructed of rubber or any other suitably resilient material and is oversized such that the enlarged ends 168 of the arms 164 are compressed against the interior walls of the bore 162. This causes the arms 164 to Wipe the walls of the bore as it rotates; each pair of arms thus encloses a substantially fluid-tight space 169.

The portion of the central body 100 above the bore 102 includes a vertical opening 170 communicative with the bore 102. The powder to be dispersed is contained in an elongated cartridge 172. The lower end of the cartridge is opened and is placed in the opening 170. The powder particles are then free to fall to the top of the metering device. The powder thus fills the topmost volume 169 enclosed by a pair of upwardly extending arms 164. As the metering device is subsequently rotated, this volume of powder is rotated to a position directly in line with the opening 142 in the valve structure 106.

A front or nose member 174 is fixed to the forward face of the central body 100. The nose member 174 includes a plate section 176 which abuts the central body 100, and forwardly projecting ears 178 and 180. An annular section 182 extends forward in alignment with the axis of the passage 167 in the metering device 162. A bore 184 extends through the section 182 and adjacent plate section 176 to abut the passage 167.

A second annular section 186 extends forwardly at the lower portion of the plate 176. A passage 188 extends through the plate 176 and the section 186 in axial align ment with the opening 142 in the valve structure 106. A hollow connector member 190 is fixed in the forward end of the passage 188. A flared nut 192 fixes the connector member 190 to the tubular conduit 194. The latter member may be constructed in the same manner as the nozzle member 64 shown in FIG. 7, so as to be adaptable for use in the exhaust manifolds of an internal combustion engine.

A shaft 196 is rotatably disposed in the bore 184 and in the passage 167 of the metering device 162. A pin 198 extends transversely through the shaft 196 adjacent its rearward end and projects into slots provided in the adjacent body 166 of the metering device.

The forward end of the shaft 196 includes an annular ratchet surface 200. An actuating handle 202 includes an annular section 204 which fits about the ratchet surface 200. A button head screw 205 retains the handle on the shaft. A pawl 206 extends through the section 204; a small spring 208 is mounted in a small radially projecting housing 210 on the section 204 and normally biases the pawl 206 against the ratchet surface 200. As'

viewed in FIG. 11, it can be seen that the pawl and ratchet assembly permits the handle 202 to rotate freely about the shaft 106 only in the clockwise direction. Counter-clockwise rotation of the handle will induce ro. tation of the shaft 196 and hence of the metering device 162. A series of socket head screws 212 extend through counter-sunk holes in the nose member 174 and fasten the latter member to the central body 100.

A rod 160 in the central body is slidably disposed in a linear opening extending through the nose member 174 and the central body. A slightly projecting arcuate surface 214 extends along the length of the valve body 110, structure 166, central body 100 and nose member 174 so as to accommodate the plunger 148 and the axially aligned abutting rod 160. The forward end of the rod projects slightly through the forward face of the plate 176 in the nose member 174.

An actuating mechanism 216 is mounted on the underside of the handle 202 and is shown in FIG. 12. This mechanism includes an elongated stop 218 which is pivotably fixed to the handle. A small spring 220 is fixed to the handle on one side of the stop 218. A bolt 222 is fixed to the handle on the opposite side of the stop 218 and projects above the surface of the handle so as to prevent pivoting of the stop in its direction. When the handle is rotated in the counter-clockwise direction as seen in FIG. 11, the stop 218 strikes the rod 160 and forces the rod and the plunger 148 rearwardly against the force of the spring 154, thereby opening the passage 158 to the cavity 146.

When the handle is rotated in the reverse direction, the spring 221) yields, permitting the stop 218 to pivot out of the way of the rod 160. Thus a full forward and return stroke of the handle will produce a single actuation of the rod 166.

A needle valve 224 mounted at the upper portion of the valve structure 106 includes an outlet conduit 226, an adjusting out 228 adapted to vary the size of the opening in the valve, and a threaded inlet 230 engaging the valve structure 106. A small air passage 232 connects the chamber 1118 with the inlet 230.

In operation, the powder cartridge 172 is opened at one end, and placed in the opening with the entire device in an inverted position. The device is then righted, and the conduit 194 inserted into the space to be treated, such as the manifold of an engine in the manner described above with respect to the first embodiment of the inven tion. This fills the uppermost enclosed space 169 in the metering device with powder. The actuating handle 292 is rotated counterclockwise until it strikes the leg 178. As the handle begins this rotational motion, the metering device 162 is similarly rotated; 21 full counterclockwise rotation of the handle 202 will rotate the next enclosed space 169 on the rotor into position directly below the cartridge 172. This motion will move the space 169 previously filled with powder to the next lower position. On the return stroke of the handle (clockwise in FIG. ll), the shaft 1516 and metering device 162 remain stationary due to the slipping action of the pawl and ratchet assembly.

The actuating handle 202 is repeatedly rotated in this manner, thereby bringing the first powder-filled space 169 to the lower position immediately in front of the opening 142.

Each time the actuating handle 202 is rotated counterclockwise it actuates the rod 160 momentarily at the end of its stroke. This movement of the rod 160 displaces the seat 152 and thereby permits communication between the cavity 146 and the passage 158 for the brief period of actuation of the rod. Air under suitable pressure is continuously introduced through the passage entrance 126, fills the filling chamber 118, and moves through the pas sageway 144 into the cavity 146. For the brief period during which the rod is actuated, the high pressure air enters the chamber 108. The pressure differential thus produced across the diaphragm 130 causes the diaphragm to move in the direction of the chamber 114. This motion moves the valve seat 138 away from its normal position sealing the holes 122, and thereby permits the high pressure air in the filling chamber 118 to enter the chamber 114.

The high pressure air in the chamber 114 then passes through the passage 140 and the opening 142. The air then strikes the powder contained in the lowermost space 169 of the metering device 162 and forces it through the passage 138 and the conduit 194 into the engine manifold.

The needle valve 224 serves as a timing device in limiting the length of time the air is blasted through the rotor 00. The high pressure air filling the chamber 108 will bleed through the air passage 232 and the needle valve 224. The needle valve may be adjusted to control the speed at which the high pressure air is exhausted from the chamber 108. The result of this bleeding of the air is a gradual lessening of the pressure in the chamber 198 and a consequent gradual closing of the valve seat 138. This causes a similar retardation of the air flow through the metering device.

It can be seen that after the first quantity of powder is brought into a position one space out of alignment with the air flow, each counter-clockwise motion (as seen in FIG. 11) of the actuating handle 202 will produce a high-pressure blast through the metering device, which blast will gradually diminish so as to provide a uniform dispersion of the powder in the engine manifold.

The slightly oversized rubber rotor seals the cartridge against the pressure created along the lower portion of the rotor. In addition, the impeller arms 1654 act as wipers so as to prevent undesirable accumulations of powder along the walls of the bore 102. The rotor could be interchangeable with other rotors each having a di'iierent sized space 169. The proper rotor could be chosen based upon the amount of powder to be dispersed with each blast of air.

The cartridge-type hopper employed in this embodiment of the invention is convenient and eliminates problems of contamination which might result with an ordinary hopper.

While the needle valve controls the speed of retardation of the air flow, the shape of the valve seat 138 and the adjacent holes 122 determines the shape of the retardation curve. For example, it might be desirable to use a coneshaped valve seat similar to that shown in FIG. in order to produce a smoother time-pressure curve.

Although I have described but two embodiments of the present invention, it is apparent that other changes and modifications may be made without departing from the spirit of the invention or the scope of the appended claims.

I claim:

1. A device for treating the combustion chambers of an internal combustion engine with a powdered or liquid substance such as a rust inhibitor or the like, said device comprising (a) a hopper for storing the treating substance,

(b) nozzle means having one end adapted to be inserted into the engine in a position to disperse the treating substance into one of the combustion chambers of the engine and having the other end open and disposed closely adjacent to said hopper,

(c) metering means normally positioned within said hopper,

(d) means selectively operable to retract said metering means from said hopper to a position in registry with said open end of said nozzle means whereby a predetermined amount of the particles or liquid is delivered to said nozzle means,

(e) pressure producing means operable to force the liquid or particles from said metering means through said nozzle means and into the combustion chamber of the engine, (f) said metering means comprising a cylindrical body portion axially slidably carried 5, in said hopper,

a conical head portion carried in axial alignment with and at a spaced position from said cylindrical body portion, and

means axially adjustably connecting said body portion whereby the space between said body portion may be varied, and

(g) said retracting means comprising a bracket carried by said hopper and axially slidably carrying said metering means,

a first handle member carried by said bracket,

a second handle member pivotally carried in a position spaced from said first handle member,

one end of said second handle member being operably connected with said metering means whereby as said second hand-1e is pivoted said metering means is axially slidably moved in said bracket.

2. A device for treating the combustion chambers of an internal combustion engine with a powdered or liquid 25 substance such as a rust inhibitor or the like, said device comprising (a) a hopper for storing the treating substance,

(b) nozzle means having one end adapted to be inserted into the engine in a position to disperse the treating substance into one of the combustion chambers of the engine and having the other end open and disposed closely adjacent tosaid hopper,

(c) metering means normally positioned within said hopper,

(d) means selectively operable to retract said metering means from said hopper to a position in registry with said open end of said nozzle means whereby a predetermined amount of the particles or liquid is delivered to said nozzle means,

(e) pressure producing means operable to force the liquid or particles from said metering means through said nozzle means and into the combustion chamber of the engine,

(i) said metering means comprising a cylindrical body portion axially slidably carried in said hopper,

a conical head portion carried in axial alignment with and at a spaced position from said cylindrical body portion, and

means axially adjustably connecting said body portion whereby the space between said body portion may be varied, and

valve means carried by said hopper and comprising a surface portion carrying said bracket,

an outlet connected to said nozzle means,

an inlet connected to said pressure producing means, and

a central chamber intermediate said inlet and said outlet and axially slidably carrying said metering means.

3. The device as defined in claim 2 and in which said pressure producing means comprises (a) a conduit adapted to be connected at one end with a source of air pressure and at the other end with said inlet of said valve means,

(b) an electrically actuated valve disposed in said conduit and operable to regulate air flow therethrough,

-(c) said last mentioned valve being adapted for electrical connection to a source of electrical power and being operable to open air flow through said conduit upon being electrically actuated,

(d) a switch being actuated by movement of said retracting means and being operable to electrically actuate said last mentioned valve whereby air flow 9 is opened through said first mentioned valve means, through said metering means and through said nozzle upon said retracting means being moved.

4. The device as defined in claim 3 and including timing means electrically connected to said last mentioned means and being operable to disrupt electrical fiow to said last mentioned valve means upon a predetermined time period having elapsed.

5. The device as defined in claim 4 and including a pressure regulator and an air flow regulator valve carried in said conduit.

6. A device for treating the combustion chambers of an internal combustion engine with a powdered or liquid substance such as a rust inhibitor or the like, said device comprising (a) a hopper for storing the treating substance,

(b) nozzle means having one end adapted to be inserted into the engine in a position to disperse the treating substance into one of the combustion chambers of the engine and having the other end open and disposed closely adjacent to said hopper,

(c) metering means normally positioned within said hopper,

(d) means selectively operable to retract said metering means from said hopper to a position in registry with said open end of said nozzle means whereby a predetermined amount of the particles or liquid is delivered to said nozzle means,

(e) pressure producing means operable to force the liquid or particles from said metering means through said nozzle means and into the combustion chamber of the engine,

(f) said retracting means comprising a bracket carried by said hopper and axially slidably carrying said metering means,

a second handle member pivotally carried in a position spaced from said first handle member,

one of said second handle members being operably connected with said metering means whereby as said second handle is pivoted said metering means is axially slidably moved in said bracket.

7. The device as defined in claim 6 and including 10- cating means carried by said nozzle means whereby the position of said nozzle with respect to each combustion chamber of the engine can be readily determined.

8. A device for dispersing particles of liquid or the like into a confined space, said device comprising (a) a reservoir for storing the particles, liquids or the like,

(b) a nozzle means connected to said reservoir and adapted to be inserted into a confined space,

(c) metering means having a receiving chamber movable intermediate said reservoir and said nozzle means and being selectively operable to deliver a predetermined amount of particles, liquid or the like from said reservoir to said nozzle means,

(d) force producing means operable to force the predetermined amount of particles, liquid or the like through said nozzle means and into the confined space, and

(e) said metering meam including means for varying the size of said chamber whereby the amount of liquid or particles delivered by said metering means to said nozzle may be selectively varied.

9. The device as defined in claim 3 and including vi brating means operably connected to said reservoir.

10. A device for insertion into the manifold of an internal combustion engine and for dispensing particles, liquids or the like through the valve ports and into the combustion chambers of said engine, said device comprising (a) a reservoir for storing the particles, liquids or the like,

(b) a nozzle means comprising an elongated hollow member adapted to be inserted through an opening 1Q provided in said manifold and being connected at one end with said reservoir and being provided at the opposite end with a perforation,

(c) metering means selectively operable to deliver a predetermined amount of particles, liquid or the like from said reservoir to said nozzle means,

(d) said hollow member being provided with a plurality of indicating means, said indicating means being spaced along said hollow member to indicate the position of said perforation with respect to each of said valve ports of said engine whereby said hollow member can be moved to positions in which said perforation registers with said valve ports, and

(e) means operable to force the predetermined amount of particles, liquid or the like through said perforation and through one of said valve ports and into a combustion chamber.

11. A device for dispersing particles, liquids or the like into a confined space, said device comprising,

(a) a reservoir for storing the particles, liquids or the like,

(b) a nozzle means connected to said reservoir and adapted to be inserted into a confined space,

(c) metering means having a receiving chamber and operable to deliver a predetermined amount of particles, liquids or the like from said reservoir to said nozzle means,

(d) means operable upon being actuated to direct a pressurized fluid into said receiving chamber of said metering means,

(e) actuating means connected to said metering means and said pressurized fluid directing means and being operable upon said receiving chamber being brought into registry with said nozzle means to actuate said pressurized fluid directing means whereby pressurized fluid is directed through said receiving chamber and through said nozzle means, and

(f) said actuating means comprising a normally closed valve means disposed in said pressurized fluid directing means and means opening said valve means only when said receiving chamber is brought into registry with said nozzle means.

12. A device for dispersing particles, liquids or the like into a confined space, said device comprising:

(a) a reservoir for storing the particles, liquids or the like,

(b) metering means having a receiving chamber and operable to deliver a predetermined amount of particles, liquid or the like from said reservoir to afirst point,

(c) force producing means operable to force the predetermined amount of particles, liquid or the like from said receiving chamber and into said confined space upon said metering means delivering the predetermined amount of particles, liquid or the like from said reservoir to said first point,

(d) automatically actuating means normally maintaining said force producing means in a non-actuated state and operable to automatically actuate said force producing means only when said metering means has delivered said predetermined amount of particles, liquid or the like to said first point.

13. A device for dispersing particles, liquids or the like into a confined space, said device comprising (a) ka reservoir for storing the particles, liquids or the li e,

(b) metering means operable to deliver a predetermined amount of particles, liquid or the like from said reservoir to a first point,

(c) a valve means connected to a source of air pressure and adapted to regulate air flow to said first point,

((1) outlet means adapted to deliver the air and particles, liquid or the like from said first point to said confined space,

(e) actuating means operable to actuate said valve means when said predetermined amount of particles, liquid or the like is delivered to said first point, and

(f) retarding means operable upon said valve means being actuated to gradually close said first valve means.

14. The device as defined in claim 11 and in which said metering means comprises a rotor having a plurality of enclosed spaces, said rotor being rotatable so as to successively bring said enclosed spaces first into filling position with respect to the particles, liquid or the like and said reservoir and thereafter to said nozzle means.

15. The device as defined in claim 14 and in which said rotor includes radially extending arms, each pair of adjacent arms defining one of said enclosed spaces.

16. The device as defined in claim 15 and in which said rotor is situated in a cylindrical bore, said rotor being oversize and of a resilient material such that the rotor arms are compressed against the bore walls.

17. The device as defined in claim 11 and in which said reservoir comprises an attachable cartridge containing the particles, liquids or the like.

18. The device as defined in claim 11 and in which said pressurized fluid directing means comprises a passage adapted to be connected at one end with a source of air pressure and terminating at its forward end at said nozzle means, whereby air moving from said source through said passage upon actuation of said valve means forces said particles, liquid or the like delivered to said nozzle means by said metering means intosaid confined space.

19. The device as defined in claim 18 and in which said pressurized fluid directing means includes retarding means adapted to gradually retard the air pressure in said passage after the particles, liquid or the like have been vforced into said confined space.

20. A device for dispersing particles, liquids or the like into a confined space, said device comprising (a) a central body having a central bore,

(b) a reservoir for storing the particles, liquids or the like in communication with said central bore,

() metering means in said bore operable to successively deliver predetermined amounts of particles, liquid or the like from said reservoir to a first point in said bore,

((1) first valve means connected to a source of air pressure and adapted to regulate air flow to said first point,

(e) outlet means adapted to deliver the air and particles, liquid or the like from said first point to said confined space,

(f) second valve means operative to actuate said first valve means,

I (g) actuating means adapted to actuate said second valve means when said predetermined amount of particles, liquid or the like is delivered to said first point, and

(h) retarding means adapted to gradually close said first valve means.

21. The device as defined in claim 20 and in which said metering means comprises a rotatable rotor having radially extending arms, each pair of adjacent arms defining a space adapted to be filled with particles, liquid or the like from said reservoir and thereafter rotated to said first point.

22. The device as defined in claim 21 and in which said actuating means comprises (a) sliding means operative to actuate said second valve means, and

(b) handle means operative to rotate said ro-tor, each actuation of said handle means bringing a predetermined amount of particles, liquid or the like in a rotor space to said first point, said handle means adapted to actuate said sliding means after said rotation of said rotor.

23. A method of treating the combustion chamber of an internal combustion engine, comprising (a) delivering a predetermined quantity of powdered or liquid rust inhibitor material or the like to a point adjacent said chamber,

(b) directing a flow of high pressure air through said predetermined quantity of powdered or liquid rust inhibitor or the like into said chamber, and

(0) immediately after said powdered or liquid rust inhibitor has been moved from said point adjacent said chamber by said flow of high pressure air gradually diminishing the flow of air into said chamber and continuing the gradually diminishing flow of air for a predetermined time period.

24. A method for uniformly dispersing powdered or liquid rust inhibitor material or the like into the combustion chamber of an internal combustion engine, comprising the steps of (a) forcing a predetermined quantity of powdered or liquid rust inhibitor material or the like into said chamber by means of a flow of high pressure air,

(b) immediately after said powdered or liquid rust inhibitor has been forced into said chamber by said flow of high pressure air gradually diminishing the flow of air into said chamber, and

(c) continuing the gradually diminishing flow of air into said chamber for a predetermined time period.

References Cited by the Examiner UNITED STATES PATENTS 1,110,135 9/1914 Henderson 222308 1,281,644 10/ 1918 Ostergren.

1,749,312 3/1930 Blair 222-373 X 1,777,043 9/ 1930 Lanhofr'er et a1.

2,526,735 10/1950 Duce 222-196 2,530,181 11/1950 Schilling 222368 X 2,806,636 9/ 1957 Richards 22236 8 X 2,807,393 9/1957 Metrailer et al. 222194 2,985,340 5/1961 Vogt 222-194 LOUIS I. DEMBO, Primary Examiner.

HADD S. LANE, EVERETT W. KIRBY, Examiners. 

1. A DEVICE FOR TREATING THE COMBUSTION CHAMBERS OF AN INTERNAL COMBUSTION ENGINE WITH A POWDERED OR LIQUID SUBSTANCE SUCH AS A RUST INHIBITOR OR THE LIKE, SAID DEVICE COMPRISING (A) A HOPPER FOR STORING THE TREATING SUBSTANCE, (B) NOZZLE MEANS HAVING ONE END ADAPTED TO BE INSERTED INTO THE ENGINE IN A POSITION TO DISPERSE THE TREATING SUBSTANCE INTO ONE OF THE COMBUSTION CHAMBERS OF THE ENGINE AND HAVING THE OTHER END OPEN AND DISPOSED CLOSELY ADJACENT TO SAID HOPPER, (C) METERING MEANS NORMALLY POSITIONED WITHIN SAID HOPPER, (D) MEANS SELECTIVELY OPERABLE TO RETRACT SAID METERING MEANS FROM SAID HOPPER TO A POSITION IN REGISTRY WITH SAID OPEN END OF SAID NOZZLE MEANS WHEREBY A PREDETERMINED AMOUNT OF THE PARTICLES OR LIQUID IS DELIVERED TO SAID NOZZLE MEANS, (E) PRESSURE PRODUCING MEANS OPERABLE TO FORCE THE LIQUID OR PARTICLES FROM SAID METERING MEANS THROUGH SAID NOZZLE MEANS AND INTO THE COMBUSTION CHAMBER OF THE ENGINE, (F) SAID METERING MEANS COMPRISING A CYLINDRICAL BODY PORTION AXIALLY SLIDABLY CARRIED IN SAID HOPPER, 